Battery device and electric appliance

Abstract

The embodiment of the application provides a battery device and a power utilization equipment, and relates to the technical field of batteries. The battery device comprises a box body, a plurality of batteries and a guard plate assembly. The box body has a containing cavity. The batteries are arranged in the containing cavity along a first direction. The guard plate assembly is arranged on one side of the box body along a second direction and is connected to both ends of the box body along the first direction. The first direction and the second direction intersect. The guard plate assembly and the box body are configured to be relatively movable. According to the battery device provided by the embodiment of the application, damage of the connection between the guard plate and the box body caused by the cyclic deformation of the battery due to the expansion of the battery can be avoided or reduced, so that the service life of the guard plate and the box body is ensured.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device and electrical equipment. Background Technology

[0002] In recent years, new energy vehicles have received increasing attention and favor from the public due to their environmental friendliness and economy.

[0003] To prevent or reduce damage to the battery pack from impacts or pressure from stones or sharp metal objects on the road, a protective plate is usually installed at the bottom of the battery pack tray. In related technologies, the protective plate is mostly bolted to the bottom of the tray for easy installation or removal.

[0004] However, the installation method of the aforementioned protective plate is difficult to withstand the tray deformation caused by battery expansion, and it is easily damaged by force interference. Utility Model Content

[0005] Based on this, this application provides a battery device and electrical equipment to solve the problem that the installation method of the upper protective plate of the existing battery device is difficult to withstand the deformation of the box caused by battery expansion, and is easily damaged by force interference.

[0006] In a first aspect, this application provides a battery device, comprising:

[0007] The enclosure has a receiving cavity;

[0008] Multiple batteries are arranged in a receiving cavity along a first direction;

[0009] A protective panel assembly is disposed on one side of the housing along a second direction and connected to both ends of the housing along a first direction, the first and second directions intersecting, and the protective panel assembly and the housing are configured to be relatively movable.

[0010] In one possible implementation, at least a portion of the protective panel assembly is configured to be movable relative to the enclosure.

[0011] In one possible implementation, the protective panel assembly includes a protective panel and at least one connector, the protective panel being disposed on one side of the housing along a second direction;

[0012] The protective plate has a first side and a second side along a first direction, and at least one of the first side and the second side is slidably connected to the housing by a connector.

[0013] In one possible implementation, the connector is attached to the housing, and the protective plate has a first sliding portion;

[0014] The connector has a second sliding portion that matches the first sliding portion, and the second sliding portion is slidably connected to the first sliding portion.

[0015] In one possible implementation, one of the first sliding part and the second sliding part is a groove, and the other is a sliding protrusion that matches the groove, with the sliding protrusion slidably connected to the groove.

[0016] In one possible implementation, the guard plate has a mounting groove located on a first side and / or a second side;

[0017] The first sliding part is located on the inner wall of the mounting groove, and the second sliding part is located on the outer wall of the connector, and the connector slides in the mounting groove.

[0018] In one possible implementation, the mounting slot has at least a first opening and a second opening, the first opening facing the housing and the second opening facing the edge of the protective plate.

[0019] In one possible implementation, the upper surface of the connector does not protrude beyond the first opening.

[0020] In one possible implementation, it also includes at least one fastener, and the connector has a through hole that matches the fastener;

[0021] The housing has connection holes that match the fasteners. The fasteners pass through the through holes and are securely connected to the connection holes.

[0022] In one possible implementation, the container includes a tray and a sealing cover, which together form a receiving cavity, and a protective panel assembly is disposed on the side of the tray facing away from the sealing cover in a second direction and connects the two ends of the tray in a first direction.

[0023] In one possible implementation, the tray includes a frame and a base plate connected to the bottom of the frame, with a guard plate assembly disposed on the side of the base plate opposite to the sealing cover in a second direction and connected to both ends of the frame in a first direction.

[0024] In one possible implementation, there are multiple connectors, which are spaced apart along a third direction, which intersects with the first and second directions respectively.

[0025] Secondly, this application also provides an electrical device, including a device body, on which any of the battery devices provided in the second aspect are disposed.

[0026] The battery device and electrical equipment provided in this application include a housing, multiple batteries, and a protective plate assembly. A receiving cavity is provided on the housing to facilitate battery placement. The batteries are arranged along a first direction within the receiving cavity. The protective plate assembly is positioned on one side of the housing along a second direction and connects to both ends of the housing along the first direction. The first and second directions intersect, and the protective plate assembly is movable relative to the housing. Therefore, the battery device provided in this application can avoid or mitigate damage to the connection between the protective plate and the housing caused by cyclic deformation due to battery expansion, thereby ensuring the service life of the protective plate and the housing. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 An exploded view of a battery device provided in an embodiment of this application;

[0029] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0030] Figure 3 This is a schematic diagram of the structure of the battery device provided in another state according to an embodiment of this application;

[0031] Figure 4 for Figure 3 A sectional view along section BB.

[0032] Figure label:

[0033] 100: Pallet;

[0034] 101: Receiving cavity;

[0035] 102: Connecting hole;

[0036] 110: Border;

[0037] 120: Base plate;

[0038] 200: Battery;

[0039] 300: Protective panel assembly;

[0040] 301: First side;

[0041] 302: Second side;

[0042] 303: Mounting slot;

[0043] 3031: The first opening;

[0044] 3032: Second opening;

[0045] 310: Protective plate;

[0046] 311: First sliding part;

[0047] 320: Connector;

[0048] 321: Second sliding part;

[0049] 322: Through hole;

[0050] 400: Fasteners;

[0051] 500: Sealing cap. Detailed Implementation

[0052] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of methods and apparatus consistent with some aspects of this application as detailed in the appended claims.

[0053] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0054] As mentioned in the background section, in recent years, new energy vehicles have gained increasing attention and favor due to their environmental friendliness and economy. However, during actual driving, the battery pack located at the bottom of the vehicle is highly susceptible to damage from impacts or pressure from stones or sharp metal objects on the road, potentially leading to high-voltage short circuits and safety accidents. Against this backdrop, adding a protective plate to the bottom of the battery pack tray is the mainstream protective measure in existing battery pack designs. However, existing protective plates are generally bolted directly to the tray frame. But for all-solid-state batteries, semi-solid-state batteries, and other batteries with high expansion forces, the tray deforms as the battery expands, causing the protective plate to be stretched and resulting in interference at the bolt connection, making it prone to damage, and unable to be removed once jammed.

[0055] To address the aforementioned problems in the prior art, this application provides a battery device and an electrical appliance. The battery device provided by this application includes a housing, multiple batteries, and a protective plate assembly. By providing a receiving cavity in the housing, the batteries are easily placed. The batteries are arranged along a first direction within the receiving cavity. The protective plate assembly is positioned on one side of the housing along a second direction and connects to both ends of the housing along the first direction. The first and second directions intersect, and the protective plate assembly is designed to be relatively movable between itself and the housing. This design avoids or mitigates damage to the connection between the protective plate and the housing caused by cyclic deformation due to battery expansion, thereby ensuring the service life of the protective plate and the housing.

[0056] The technical solutions of this application will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0057] Firstly, please refer to Figures 1-4 As shown in the figure, this application provides a battery device, including a housing, a plurality of batteries 200 and a protective plate assembly 300.

[0058] The box has a receiving cavity 101.

[0059] Each battery 200 is arranged in the receiving cavity 101 along the first direction.

[0060] The protective panel assembly 300 is disposed on one side of the housing along the second direction and connects the two ends of the housing along the first direction. The first and second directions intersect, and the protective panel assembly 300 and the housing are configured to be relatively movable.

[0061] In this embodiment, the housing is used to carry the battery 200, battery module, and other related components. It can be assembled from a frame and a base plate, or it can be integrally molded, and its shape is roughly rectangular. The housing has a receiving cavity 101, which is roughly "U"-shaped, to accommodate the battery 200, power distribution components, and other related components.

[0062] In this embodiment, the battery 200 can be plate-shaped, such as a blade battery, or it can be assembled into a battery module. The battery 200 or the battery module can be connected to the receiving cavity 101 of the housing by means of bonding, snap-fitting, screwing, etc. Multiple batteries 200 can be arranged in the receiving cavity 101 along a first direction, such as along... Figure 1 As shown along the X-axis, during charging and discharging, battery 200 expands or contracts primarily along the first direction. In particular, sulfide solid-state batteries require strong restraint forces, causing battery 200 to undergo certain deformations with relatively large expansion and contraction amplitudes.

[0063] It should be noted that the specific type and specifications of the battery 200 can be determined according to actual needs, while the specific shape and size of the receiving cavity 101 can be determined according to the actual installation requirements of the battery 200. Of course, multiple batteries 200 can also be arranged in other directions.

[0064] In this embodiment, the protective plate assembly 300 is used to protect at least one of the bottom, top, front, and rear sides of the housing. It can be a plate-like or shell-like structure. The protective plate assembly 300 is disposed on one side of the housing along a second direction, such as along... Figure 1 As shown in the Z-axis direction, the second direction is perpendicular to the first direction and can be connected to both ends of the housing along the first direction. Along the first direction, the protective plate assembly 300 can slide, roll, or move relative to the housing. If the protective plate assembly 300 is installed on the side of the housing, it can slide, roll, or move relative to the housing in the vertical direction.

[0065] The guard plate assembly 300 is connected to the housing through a sliding structure, a rolling structure, or a guide rail mechanism, such as the cooperation between a groove and a protrusion, or the cooperation between a roller and a limiting groove, or the cooperation between a guide rail and a slider.

[0066] In this way, when the protective plate assembly 300 is located at the bottom of the casing, and the battery 200 expands, causing the casing to expand along the first direction, the protective plate assembly 300 can move relative to the casing along the first direction or in the opposite direction to create a relative displacement with the casing. That is, the protective plate assembly 300 does not expand or contract with the casing, and of course, the protective plate assembly 300 will not interfere with the casing due to stretching. Similarly, when the battery 200 expands, causing the casing to expand in other directions, at least a portion of the protective plate assembly 300 can also move relative to the casing to create a relative displacement with the casing, thus preventing interference with the casing due to stretching.

[0067] It is understandable that, compared to the existing technology where the protective plate is fixed to the bottom of the tray by bolts, the application of the battery device in this application embodiment can avoid or reduce the damage to the connection between the protective plate and the box caused by the cyclic deformation caused by the expansion of the battery 200, thereby ensuring the service life of the protective plate and the box.

[0068] Therefore, the battery device provided in this application embodiment includes a housing, multiple batteries 200, and a protective plate assembly 300. By providing a receiving cavity 101 on the housing, it is convenient to place the batteries 200. By arranging each battery 200 in the receiving cavity 101 along a first direction, and setting the protective plate assembly 300 on one side of the housing along a second direction and connecting the two ends of the housing along the first direction, the first and second directions intersect. The protective plate assembly 300 is designed to be movable relative to the housing, which can avoid or reduce damage to the connection between the protective plate and the housing caused by the cyclic deformation caused by the expansion of the batteries 200, thereby ensuring the service life of the protective plate and the housing.

[0069] In some embodiments, at least a portion of the protective panel assembly 300 is configured to be movable relative to the housing. This configuration allows a portion of the protective panel assembly 300 to be fixedly connected to the housing, while the remaining portion is connected to the housing via a sliding structure, rolling structure, or guide rail mechanism, ensuring relative movement of that portion.

[0070] Of course, the entire protective plate assembly 300 can also be connected to the housing via a sliding structure, rolling structure, or guide rail mechanism to ensure relative movement. Furthermore, at least a portion of the housing can move relative to the protective plate assembly 300, which also avoids interference. This can be determined according to actual needs, and this embodiment does not impose too many restrictions.

[0071] Furthermore, in this embodiment, the protective plate assembly 300 includes a protective plate 310 and at least one connector 320, wherein the protective plate 310 is disposed on one side of the housing along the second direction.

[0072] The protective plate 310 has a first side 301 and a second side 302 along a first direction, and at least one of the first side 301 and the second side 302 is slidably connected to the box body by a connector 320.

[0073] Specifically, the protective plate 310, as a protective component of the enclosure, needs to possess good strength and rigidity to withstand the weight of the battery 200 and the tensile force generated by cyclic expansion and deformation. It can be made of high-strength, lightweight materials, such as aluminum alloy or carbon fiber composite materials, to reduce the weight of the battery device while ensuring strength and rigidity.

[0074] Furthermore, as a key connecting component, connector 320 needs to possess excellent sliding performance and limiting function; it can be a slider, slide plate, or similar device. Connector 320 is made of wear-resistant and corrosion-resistant materials, such as stainless steel or polymer composite materials, to ensure that it will not fail due to wear or corrosion during long-term use.

[0075] For example, such as Figure 1 As shown, the protective plate 310 is generally a rectangular thin plate structure, which is set on one side of the box along the second direction, such as the bottom or top of the box, and along the first direction, such as along Figure 1 As shown in the X-axis direction, the guard plate 310 has a first side 301 and a second side 302. The first side 301 and the second side 302 of the guard plate 310 are both connected to the two sides of the housing along the first direction by the connector 320. Alternatively, the guard plate 310 may only have the first side 301 or only the second side 302 connected to the housing along the first direction by the connector 320.

[0076] The protective plate 310 and the connecting member 320 can be connected by a sliding structure, a rolling structure, or a sliding component, allowing the protective plate 310 to slide relative to the connecting member 320 in a first direction. Alternatively, the housing and the connecting member 320 can be connected by a sliding structure, a rolling structure, or a sliding component, allowing the connecting member 320 to slide relative to the housing in a first direction. Or, both the housing and the protective plate 310 can be connected to the connecting member 320 by a sliding structure, a rolling structure, or a sliding component, allowing both the housing and the protective plate 310 to slide relative to the connecting member 320 in a first direction.

[0077] In this way, when the battery 200 expands and causes the casing to expand along the first direction, such as along... Figure 1 The expansion along the X-axis allows the housing and the protective plate 310 to slide relative to each other, thus preventing the protective plate 310 from being damaged by the expansion and contraction forces.

[0078] It should be noted that when the first side 301 of the protective plate 310 is fixedly connected to the box body, the second side 302 of the protective plate 310 needs to slide relative to the box body. Similarly, when the second side 302 of the protective plate 310 is fixedly connected to the box body, the first side 301 of the protective plate 310 needs to slide relative to the box body. Of course, the connector 320 can also be part of the box body, which can also achieve a sliding connection between the protective plate 310 and the box body.

[0079] Optionally, when the guard plate 310 and the connector 320 are slidably connected, an elastic component (not shown in the figure) can be provided between the connector 320 and the guard plate 310 to reset the connector 320 so that when the box is retracted, the elastic component can drive the connector 320 back to its original position.

[0080] In addition, the shape and size of the protective plate 310 are designed according to the shape and size of the enclosure to ensure that the protective plate 310 can fit tightly against the bottom of the battery pack and provide sufficient support and protection. The shape and size of the connector 320 are designed according to the installation requirements on the protective plate 310. The connector 320 will restrict the movement of the protective plate 310 in a direction intersecting the first direction to ensure the stability and reliability of the protective plate 310.

[0081] Furthermore, in this embodiment, the connector 320 is connected to the housing, and the protective plate 310 has a first sliding part 311.

[0082] The connector 320 has a second sliding portion 321 that matches the first sliding portion 311, and the second sliding portion 321 is slidably connected to the first sliding portion 311.

[0083] Specifically, such as Figure 2 , Figure 4 As shown, the connector 320 can be connected to the bottom or top of the box by means of screwing, snapping, welding, etc. The guard plate 310 has a first sliding part 311, and the connector 320 has a second sliding part 321. The sliding directions of the first sliding part 311 and the second sliding part 321 are both extended along the first direction. The second sliding part 321 matches the first sliding part 311 and is slidably connected.

[0084] For example, in this embodiment, one of the first sliding part 311 and the second sliding part 321 is a sliding groove, and the other is a sliding protrusion that matches the sliding groove, and the sliding protrusion is slidably connected to the sliding groove.

[0085] In one example, such as Figure 2 As shown, the first sliding part 311 is a sliding groove, and the second sliding part 321 is a sliding protrusion that matches the sliding groove. Both the sliding groove and the sliding protrusion extend along the first direction, and the sliding protrusion is slidably connected to the sliding groove, thereby ensuring stable sliding between the guard plate 310 and the connector 320.

[0086] In another example, which is not shown in the figure, the first sliding part 311 can also be a sliding protrusion, and the second sliding part 321 can be a sliding groove that matches the sliding protrusion. Both the sliding groove and the sliding protrusion extend along the first direction, and the sliding protrusion is slidably connected to the sliding groove, which can also ensure stable sliding between the guard plate 310 and the connector 320.

[0087] The specific shape, size, and dimensions of the groove and the protrusion can be determined according to actual needs. Of course, the first sliding part 311 and the second sliding part 321 can also be replaced by other sliding structures. Any structure that can ensure stable sliding between the guard plate 310 and the connecting member 320 is acceptable. This embodiment does not impose too many restrictions.

[0088] Furthermore, in this embodiment, the protective plate 310 has a mounting groove 303, which is located on the first side 301 and / or the second side 302.

[0089] The first sliding part 311 is located on the inner wall of the mounting groove 303, and the second sliding part 321 is located on the outer wall of the connector 320, and the connector 320 slides in the mounting groove 303.

[0090] Specifically, such as Figure 2 As shown, at least one of the first side 301 and the second side 302 on the guard plate 310 is provided with a mounting groove 303. The mounting groove 303 matches the connector 320. The first sliding part 311 is located on the inner wall of the mounting groove 303, and the second sliding part 321 is located on the outer wall of the connector 320.

[0091] This reduces the Z-axis height, allowing the 310 guard plate to fit more closely to the bottom of the enclosure, and also makes the structure simpler, easier to process, and lower in cost.

[0092] More specifically, such as Figure 2 As shown, the two first sliding parts 311 are located on opposite inner walls of the mounting groove 303, and the two second sliding parts 321 are located on opposite outer walls of the connector 320. The second sliding parts 321 are slidably connected to the first sliding parts 311.

[0093] Furthermore, in this embodiment, the mounting groove 303 has at least a first opening 3031 and a second opening 3032, with the first opening 3031 facing the housing and the second opening 3032 facing the edge of the protective plate 310.

[0094] This setting, such as Figure 2 , Figure 4 As shown, this facilitates the installation and replacement of the connector 320. For example, before the protective plate 310 is installed at the bottom of the enclosure, it is convenient to insert the connector 320 into the mounting slot 303. After the protective plate 310 is installed at the bottom of the enclosure, when the connector 320 needs to be replaced, it is not necessary to remove the entire protective plate 310, making it more flexible.

[0095] Furthermore, in this embodiment, the upper surface of the connector 320 does not protrude beyond the first opening 3031.

[0096] That is, the upper surface of the connector 320 is flush with the upper surface of the guard plate 310, or the upper surface of the connector 320 is lower than the upper surface of the guard plate 310. This arrangement can minimize the gap between the guard plate 310 and the bottom of the box, making it easier for the guard plate 310 to support the bottom of the box, resulting in a more compact structure.

[0097] In some embodiments, the battery device provided in this application further includes at least one fastener 400, and the connector 320 has a through hole 322 that matches the fastener 400.

[0098] The housing has a connection hole 102 that matches the fastener 400. The fastener 400 passes through the through hole 322 and is fastened to the connection hole 102.

[0099] With this configuration, the connector 320 is detachably connected to the housing via fastener 400, which facilitates installation, replacement or adjustment, simplifies the maintenance process and reduces maintenance costs.

[0100] For example, such as Figure 4 As shown, fastener 400 is a fastening bolt, and connector 320 has a through hole 322 that matches the fastening bolt. Connecting hole 102 is a threaded hole that matches the fastening bolt and is located at the bottom of the housing. The fastening bolt passes through the through hole 322 and is fastened to the threaded hole. In this way, the tight fit and good support between the guard plate 310 and the housing can be ensured by adjusting the preload of the fastening bolt.

[0101] Of course, the fastener 400 and the housing can also be replaced by other types of fastening structures, such as pins, etc. Any structure that can ensure that the connector 320 is stably connected to the bottom of the housing can be used, depending on the actual needs. This embodiment does not impose too many restrictions.

[0102] Furthermore, in some embodiments, the housing includes a tray 100 and a sealing cover 500, the tray 100 and the sealing cover 500 forming a receiving cavity 101, and a protective plate assembly 300 is disposed on the side of the tray 100 away from the sealing cover 500 along a second direction and connects the two ends of the tray 100 along a first direction.

[0103] Specifically, such as Figure 1 As shown, the tray 100 can be a frame structure with an opening at its upper end that communicates with the receiving cavity 101 for easy placement of the battery 200. A protective plate assembly 300 is disposed at the bottom of the tray 100 to protect the tray 100. Moreover, the protective plate assembly 300 is connected to both ends of the tray 100 along a first direction.

[0104] Furthermore, in some embodiments, the tray 100 includes a frame 110 and a base plate 120 connected to the bottom of the frame 110, and a guard plate assembly 300 is disposed on the side of the base plate 120 opposite to the sealing cover 500 in a second direction and connected to both ends of the frame 110 in a first direction.

[0105] For example, such as Figure 1 , Figure 4As shown, the frame 110 can be formed by four side beams connected sequentially. The side beams can be made of profiles, and adjacent side beams can be connected by welding, screwing, snap-fitting, etc., to form a "U"-shaped structure. The connecting hole 102 is located at the bottom of the frame 110, which on the one hand allows the periphery of the guard plate 310 to be connected to the frame 110, making the connection position more reasonable, and on the other hand, it can utilize the high strength characteristics of the side beams to make the connection of the fastener 400 more stable and reliable.

[0106] Furthermore, the base plate 120 can be welded to the bottom of each side beam to support or cool the battery 200 or battery module, and cooling channels are integrated within the base plate 120. The base plate 120 and the frame 110 enclose a receiving cavity 101 for mounting the battery 200 or battery module. The battery 200 or battery module can be connected to the receiving cavity 101 of the tray 100 by means of bonding, snap-fitting, screwing, etc., and multiple batteries 200 or battery modules can be arranged side by side on the tray 100.

[0107] Additionally, the guard plate assembly 300 is disposed at the bottom of the base plate 120 and connected to both ends of the frame 110 along a first direction, such as along... Figure 1 The two ends in the X-axis direction are used to isolate and protect the bottom of the base plate 120.

[0108] In some embodiments, there are multiple connectors 320, which are spaced apart along a third direction, which intersects the first direction and the second direction respectively. Further, the third direction is perpendicular to both the first and second directions.

[0109] Specifically, such as Figure 1 , Figure 3 As shown, the third direction is as follows Figure 1 As shown in the Y-axis direction, the two sides of the guard plate 310 are connected to the tray 100 through multiple connectors 320, which can make the force more balanced, thereby improving stability and reliability.

[0110] The specific number and location of the connectors 320 can be determined according to actual needs, and no specific limitation is made in this embodiment.

[0111] Secondly, embodiments of this application also provide an electrical device, including a device body, on which a battery device provided in any of the above embodiments is disposed. The electrical device can be a new energy vehicle, an energy storage power station, an aircraft, a computer, etc. For example, a new energy vehicle may include a vehicle body, and the battery device may be installed at the bottom of the vehicle body.

[0112] The structure of the battery device has been described in detail in the above embodiments and will not be repeated here.

[0113] It is understood that the electrical equipment provided in this application embodiment, by configuring the above-mentioned battery device, includes a housing, multiple batteries 200 and a protective plate assembly 300. By providing a receiving cavity 101 on the housing, it is convenient to place the batteries 200. By arranging each battery 200 in the receiving cavity 101 along the first direction, and setting the protective plate assembly 300 on one side of the housing along the second direction and connecting the two ends of the housing along the first direction, the first direction and the second direction intersect. The protective plate assembly 300 and the housing are made movable relative to each other, which can avoid or reduce the damage to the connection between the protective plate and the housing caused by the cyclic deformation caused by the expansion of the battery 200, thereby ensuring the service life of the protective plate and the housing.

[0114] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0115] It should be understood that this application is not limited to the precise structures described above and shown in the appendix, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A battery device, characterized in that, include: A housing having a receiving cavity (101). Multiple batteries (200) are arranged in the receiving cavity (101) along a first direction; A protective panel assembly (300) is disposed on one side of the housing along a second direction and connects the two ends of the housing along a first direction, wherein the first direction and the second direction intersect. The protective panel assembly (300) and the housing are configured to be movable relative to each other.

2. The battery device according to claim 1, characterized in that, At least a portion of the guard plate assembly (300) is configured to be movable relative to the housing.

3. The battery device according to claim 2, characterized in that, The guard plate assembly (300) includes a guard plate (310) and at least one connector (320), the guard plate (310) being disposed on one side of the housing along the second direction; The guard plate (310) has a first side (301) and a second side (302) along a first direction, and at least one of the first side (301) and the second side (302) is slidably connected to the housing via the connector (320).

4. The battery device according to claim 3, characterized in that, The connector (320) is connected to the housing, and the guard plate (310) has a first sliding part (311). The connector (320) has a second sliding portion (321) that matches the first sliding portion (311), and the second sliding portion (321) is slidably connected to the first sliding portion (311).

5. The battery device according to claim 4, characterized in that, One of the first sliding part (311) and the second sliding part (321) is a groove, and the other is a sliding protrusion that matches the groove, and the sliding protrusion is slidably connected to the groove.

6. The battery device according to claim 4, characterized in that, The guard plate (310) has a mounting groove (303) located on the first side (301) and / or the second side (302); The first sliding part (311) is located on the inner wall of the mounting groove (303), and the second sliding part (321) is located on the outer wall of the connector (320), and the connector (320) slides in the mounting groove (303).

7. The battery device according to claim 6, characterized in that, The mounting groove (303) has at least a first opening (3031) and a second opening (3032), the first opening (3031) facing the housing and the second opening (3032) facing the edge of the guard plate (310).

8. The battery device according to claim 7, characterized in that, The upper surface of the connector (320) does not protrude from the first opening (3031).

9. The battery device according to claim 4, characterized in that, It also includes at least one fastener (400), the connector (320) having a through hole (322) that matches the fastener (400). The housing has a connection hole (102) that matches the fastener (400), the fastener (400) passes through the through hole (322) and is fastened to the connection hole (102).

10. The battery device according to any one of claims 1 to 9, characterized in that, The housing includes a tray (100) and a sealing cover (500), the tray (100) and the sealing cover (500) enclosing to form the receiving cavity (101), and the protective plate assembly (300) is disposed on the side of the tray (100) away from the sealing cover (500) along the second direction and connects the two ends of the tray (100) along the first direction.

11. The battery device according to claim 10, characterized in that, The tray (100) includes a frame (110) and a base plate (120) connected to the bottom of the frame (110). The guard plate assembly (300) is disposed on the side of the base plate (120) opposite to the sealing cover (500) along the second direction and is connected to both ends of the frame (110) along the first direction.

12. The battery device according to any one of claims 3 to 9, characterized in that, The number of connectors (320) is multiple, and the multiple connectors (320) are arranged at intervals along a third direction, which intersects the first direction and the second direction respectively.

13. An electrical appliance, characterized in that, It includes a device body, on which a battery device as described in any one of claims 1 to 12 is disposed.

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